Table 1.

Sample Characteristics of the Intention-to-Treat Population (N=113)

	Scalp Cooling Group (N=75)	Control Group (N=38)	p-value
Age: mean (SD)	51.3 (13.5)	55.6 (12.4)	P=0.102
Marital status: N (%)			P=0.190
Single	8 (11.6%)	7 (19.4%)
Married, in partnership	51 (73.9%)	23 (63.9%)
Divorced, separated	9 (13.0%)	3 (8.3%)
Widowed	1 (1.4%)	3 (8.3%)
Missing	6	2
Menopausal status:			P=0.232
Premenopausal	39 (52.7%)	15 (39.5%)
Postmenopausal	35 (47.3%)	23 (60.5%)
Missing	1
Grade:			P=0.015
G1	6 (8.0%)	1 (2.6%)
G2	36 (48.0%)	29 (76.3%)
G3	33 (44.0%)	8 (21.1%)
Histology:			P=0.516
Invasive ductal	68 (90.7%)	37 (97.4%)
Invasive lobular	3 (4.0%)	1 (2.6%)
DCIS	2 (2.7%)	0 (0.0%)
Other	2 (2.7%)	0 (0.0%)
Chemotherapy type:			P=0.840
Neoadjuvant	49 (65.3%)	25 (65.8%)
Adjuvant	22 (29.3%)	10 (26.3%)
Palliative	4 (5.3%)	3 (7.9%)

Abbreviations: SD, standard deviation; DCIS, ductal carcinoma in situ.